Automobile tire with removable tread fillers and tread cavities beneath the rolling surface

ABSTRACT

An automobile tire is so constructed that it produces new tread as the old tread is about worn out. The first method is to mould a filler beneath the tread cavity of the new tire. When the tread is worn down to near an unsafe condition, the filler is removed which exposes new tread height.  
     A second method of allowing the tire to form new tread is to constructt tread cavities downward of the rolling surface of the tire. The crest of the downward formed tread cavity is positioned just above the base of the regular tread cavity. As the tire wears down the regular tread is worn off but new tread is exposed by the same wear since the tread cavity is downward of the rolling surface of the tire. Never before has there been an automobile tire that could reproduce tire tread. This is new.

[0001] Automobile tires are discarded when the tread is worn down such that the tires are suspected to hydroplane on wet highways. The remainder of the tire will continue to perform for years if said tire could receive new tread height. These billions of discarded tires have to be destroyed and replaced with new tires. New tread on the original tire is needed.

[0002] This inventor will build a tire that has extra tread depth and containing a removable filler moulded between the tread so that when the tread is worn down to within about {fraction (3/32)} inch the fillers may be removed and the tire now has tread height like at least new tread condition.

[0003] When tread is again worn down to about {fraction (3/32)} inch, a second filler may be removed and again the tire has tread height like at least new tread condition. The filler strips will have small protrusions pointing upward for grasping and removing the filler strips. Filler strips may run the circumference of the tire just under the tread cavity. Said strips may also run oblique or traverse to surface of tire but beneath tread cavity.

[0004] Also constructed is a tire that has tread cavities built downward of the surface of the tire and laterially displaced from the bases of the top tread cavities. These downward tread cavities only appear after the top tread cavities are almost worn out. Said cavities could be made to appear at any wear out height of original tread height by constructing the downward tread cavities at different distances from the surface of of the tire.

[0005]FIG. 1 shows a cross section of a tire with t1, t2, t3, and t4 as the tread cavities that run the outer circumference of the tire. F1 and f4 are the fillers beneath the tire treads t1 thru t4. P1, p2, p3, and p4 are pull tabs which will assist in removing the fillers. When the fillers f1 thru f4 are removed a new tread cavity is present.

[0006]FIG. 2 shows a cross section of a tire with t1, t2, t3 as the tread cavities that run the outer circumference of the tire. F1, f2, and f3 are the fillers beneath the tire treads t1 thru t3. P1, P2, and P3 are the pull tabs which assist in removing the fillers. When the fillers f1 thru f3 are removed, a new tread cavity is present. When that tread cavity is worn down to pull tabs p4, p5, and p6 fillers f4, f5, and f6 are removed and new tread cavities are present.

[0007]FIG. 3 shows a cross section of a tire with transverse tread section T and filler f1 beneath tread cavity T. Also shown is p1f1 thru p6f1 which are the pull tabs to f1 which will assist in removing filler f1 to form a new tread cavity. Also shown is filler f2 which can be removed when the tread is worn down to pull tabs p1f2, p2f2, and p3f2. Said pull tabs will assist in removing filler f2 to form a new tread cavity and new tread height. 

What is claimed:
 1. An automobile tire with a tread cavity and a removable filler moulded beneath the tread cavity. A pull tab on the filler for removing the filler from the tire to form a new tread cavity equal to the original tread cavity. A second removable filler moulded beneath the first filler. Pull tabs on the second filler for moving the second filer form a new tread cavity equal to the original tread cavity.
 2. An automobile tire with tread cavities. Removable tread fillers embedded traverse to, oblique to, or circumferential to the rolling surface of the tire and just below the original tread cavities. Pull tabs on fillers for removing fillers.
 3. An automobile tire with tread cavities on surface of tire. Tire also containing multiple parallel tread cavities beneath the rolling surface of the tire and laterally displaced from the bases of the tread cavities of tires rolling surface. Tread cavities below said rolling surface are positioned so that creasts of said cavities are approximately {fraction (3/32)} inch above the base of the original tread cavity. New tread is formed as old tread is worm down to new tread underneath the rolling surface. 